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  1. 8

    Loss of power during acceleration

    Have a 1990 f250 7.3 idi zf5 4x4 Just installed a new injection pump Got everything hooked back up lined up etc Now it bogs around 1500 to 2000 rpms After around 2300 it will pick up and smooth out some but still not as much power any help is appreciated thanks
  2. 8

    popping through exhaust

    7.3 idi non turbo zf5 trans .Need some help ... having a loud popping sound through the exhaust. Anybody with same experience? Valves ? Where to begin
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